With just one hand and the pull of a trigger, you can adjust the Primos Trigger StickÂ® to your desired height. The Trigger StickÂ® is a lightweight height-adjustable gun rest and optical gear mount, perfect for kneeling or standing. It comes equipped with a detachable V yoke. The Trigger StickÂ® fits 1/4?-20 & 3/8?-16 threaded fixtures for securing optical gear. It is perfect for cameras, spotting scopes, binoculars, laser range finders and almost any other mono pod mountable device.